Eyeliner, mascara, and lipstick may require a little practice to master, but they are pretty simple in principle: draw along the edges of your eyelids, coat your lashes, trace your lips. But eye shadow? Applying eye shadow is the makeup equivalent of making impressionist paintings, except that your canvas is about the size of your thumb. Choosing which colors go where (even choosing which colors to use at all) can be pretty daunting, which explains the popularity of eye shadow palettes: a smoky eye is bound to be easier to achieve when you're given a predetermined selection of shades. Wondering which palette to invest in? We have a few ideas! Bonus: none of these palettes were tested on animals.